This is really a strange article. It seems to combine a summary of previous information about Technosphere Insulin with a lab study. Using cell cultures with similar properties to lung tissue and a comparison with an agent know to permenantly increase cell permeability (bad) it concludes that TI does not increase permeability.
Surely MannKind must have sanctioned this study by making the TI available. This seems like graduate level work at best because of the muddling of the positive review of past TI research with the actual study being presented. Also I would expect something of this nature coming out of India would have perfectly gramatical English.
On a side note brought up in this thread...the mysterious $200 million order from a Middle Eastern country...As we know Al likes to talk, sometimes a bit too much. What he said over 2 years ago was that a Middle Eastern country had said they would be intersted in buying $200 million worth of Afrezza if it was available. That comment was almost certainly the result of a casual conversation in Israel, where Al has many contacts (Technion), and not any kind of real offer backed by hard cash.